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Claude Sonnet 5.5 vs Mistral Large 2

Claude Sonnet 5.5 leads the LLM Stats Score 58.0 to 7.4. Mistral Large 2 is 1.3x cheaper per token.

Anthropic · Mistral AI · Updated for 2026

Which is better?

Claude Sonnet 5.5 leads the overall LLM Stats Score 58.0 to 7.4, ranking #3 overall.

On price, Mistral Large 2 is roughly 1.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude Sonnet 5.5 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Sonnet 5.5

  • overall performance matters — it scores 58.0 and ranks #3 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Sep 2026

Choose Mistral Large 2

  • cost matters — it's about 1.3x cheaper per token
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude Sonnet 5.5
Anthropic
Mistral Large 2
Mistral AI
Core performance indexes
LLM Stats Score
58.0
#3
7.4
#296
Reasoning
56.6
#3
7.3
#289
Coding
48.8
#2
13.0
#146
Cost, coverage & limits
Benchmark wins
—
—
Input price
$2.00 / M
$2.00 / M
Output price
$10.00 / M
$6.00 / M
Context window
1,000,000
128,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Sonnet 5.5
Mistral Large 2
Math
36.9#34
11.3#246
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

47 reported for Claude Sonnet 5.5 · 5 for Mistral Large 2

No common benchmarks found

Claude Sonnet 5.5 and Mistral Large 2don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Mistral Large 2 costs less

For input processing, Claude Sonnet 5.5 ($2.00/1M tokens) costs the same as Mistral Large 2 ($2.00/1M tokens).

For output processing, Claude Sonnet 5.5 ($10.00/1M tokens) is 1.7x more expensive than Mistral Large 2 ($6.00/1M tokens).

In conclusion, Claude Sonnet 5.5 is more expensive than Mistral Large 2.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Sep 29 2026 • llm-stats.com
Anthropic
Claude Sonnet 5.5
Input tokens$2.00
Output tokens$10.00
Best providerAnthropic
Mistral AI
Mistral Large 2
Input tokens$2.00
Output tokens$6.00
Best providerGoogle
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Claude Sonnet 5.5 accepts 1,000,000 input tokens compared to Mistral Large 2's 128,000 tokens. Both models can generate responses up to 128,000 tokens.

Anthropic
Claude Sonnet 5.5
Input1,000,000 tokens
Output128,000 tokens
Mistral AI
Mistral Large 2
Input128,000 tokens
Output128,000 tokens
Tue Sep 29 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Sonnet 5.5 supports multimodal inputs, whereas Mistral Large 2 does not.

Claude Sonnet 5.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Sonnet 5.5

Text
Images
Audio
Video

Mistral Large 2

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Sonnet 5.5 is licensed under a proprietary license, while Mistral Large 2 uses Mistral Research License.

License differences may affect how you can use these models in commercial or open-source projects.

Claude Sonnet 5.5

Proprietary

Closed source

Mistral Large 2

Mistral Research License

Open weights

Release Timeline

When each model was launched

Claude Sonnet 5.5 was released on 2026-09-28, while Mistral Large 2 was released on 2024-07-24.

Claude Sonnet 5.5 is 27 months newer than Mistral Large 2.

Claude Sonnet 5.5

Sep 28, 2026

1 days ago

2.2yr newer
Mistral Large 2

Jul 24, 2024

2.2 years ago

Knowledge Cutoff

When training data ends

Claude Sonnet 5.5 has a documented knowledge cutoff of 2026-06-01, while Mistral Large 2's cutoff date is not specified.

We can confirm Claude Sonnet 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without Mistral Large 2's cutoff date.

Claude Sonnet 5.5

Jun 2026

Mistral Large 2

—

Provider Availability

Claude Sonnet 5.5 is available from Anthropic. Mistral Large 2 is available from Google, Mistral AI.

Claude Sonnet 5.5

anthropic logo
Anthropic
Input Price:Input: $2.00/1MOutput Price:Output: $10.00/1M

Mistral Large 2

google logo
Google
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M
mistral logo
Mistral
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Sonnet 5.5 and Mistral Large 2 side-by-side, then vote on the output you prefer.

Claude Sonnet 5.5
✓ Preferred
Mistral Large 2
Open in Playground

FAQ

Common questions about Claude Sonnet 5.5 vs Mistral Large 2.

Which is better, Claude Sonnet 5.5 or Mistral Large 2?

Claude Sonnet 5.5 leads the LLM Stats Score 58.0 to 7.4. Claude Sonnet 5.5 is made by Anthropic and Mistral Large 2 is made by Mistral AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Sonnet 5.5 compare to Mistral Large 2 in benchmarks?

Claude Sonnet 5.5 scores BenchCAD (with Python tool): 96.3%, ArXivMath (with tools): 95.2%, Global-MMLU: 92.1%, MILU: 91.6%, SWE-bench Multilingual: 90.3%. Mistral Large 2 scores GSM8k: 93.0%, HumanEval: 92.0%, MT-Bench: 86.3%, MMLU: 84.0%, MMLU French: 82.8%.

Is Claude Sonnet 5.5 cheaper than Mistral Large 2?

Both models cost $2.00 per million input tokens.

What are the context window sizes for Claude Sonnet 5.5 and Mistral Large 2?

Claude Sonnet 5.5 supports 1.0M tokens and Mistral Large 2 supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Sonnet 5.5 and Mistral Large 2?

Key differences include LLM Stats Score (58.0 vs 7.4), context window (1.0M vs 128K), multimodal support (yes vs no), licensing (Proprietary vs Mistral Research License). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Sonnet 5.5 and Mistral Large 2?

Claude Sonnet 5.5 is developed by Anthropic and Mistral Large 2 is developed by Mistral AI.

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